US Patent Issued to Baker Hughes Oilfield Operations on April 1 for "Immersed lens downhole refractometer" (Texas Inventors)

ALEXANDRIA, Va., April 2 -- United States Patent no. 12,264,581, issued on April 1, was assigned to Baker Hughes Oilfield Operations LLC (Houston).

"Immersed lens downhole refractometer" was invented by Rocco DiFoggio (Houston) and Helene C. Climent (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for detecting one or more properties of a downhole fluid includes a housing. The apparatus also includes a location-sensitive optical detector, arranged within a chamber formed by the housing. The apparatus further includes a light source, arranged within the chamber. The apparatus also includes a lens, positioned at an end of the housing, the lens preferably having a flat side and a curved side...